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Related Concept Videos

The Tumor Microenvironment02:17

The Tumor Microenvironment

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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Microenvironmental Heterogeneity in Brain Malignancies.

Lucas J M Perus1,2, Logan A Walsh1,3

  • 1Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montreal, QC, Canada.

Frontiers in Immunology
|October 22, 2019
PubMed
Summary
This summary is machine-generated.

Brain tumor microenvironment composition influences cancer progression and immunotherapy efficacy. Understanding this heterogeneity is key to developing targeted therapies for brain cancers.

Keywords:
brain cancerbrain metastasisglioblastomagliomaimmunotherapytumor microenvironment

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Area of Science:

  • Neuro-oncology
  • Cancer Biology
  • Immunology

Background:

  • Brain tumors are highly lethal malignancies.
  • The brain tumor microenvironment (TME) significantly impacts primary and metastatic brain cancer evolution.
  • Macrophages and myeloid cells are prevalent in the TME, correlating with aggressive tumor phenotypes.

Purpose of the Study:

  • To review the association between TME composition and molecular profiles in gliomas and brain metastases.
  • To explore the implications of TME heterogeneity on brain cancer immunotherapy.
  • To highlight the importance of understanding microenvironmental factors for targeted therapy development.

Main Methods:

  • Literature review of studies investigating brain tumor microenvironment.
  • Analysis of the relationship between tumor molecular signatures and TME components.
  • Examination of immunotherapy efficacy in relation to TME characteristics.

Main Results:

  • Diverse brain tumor types exhibit unique microenvironmental contexts.
  • A strong link exists between tumor cell molecular profiles and TME composition.
  • TME composition significantly affects the efficacy of immunotherapies for brain malignancies.

Conclusions:

  • Microenvironmental heterogeneity is a critical factor in brain cancer.
  • Understanding the TME is essential for designing effective, targeted therapies.
  • Further research into TME-targeted treatments holds promise for improving outcomes in brain cancer patients.